苏州市空气质量现状及其影响因素评析  

Current situation of air quality in Suzhou and the influencing factors

作　　者：刘林瑶 牟子平[1] 秦惠平 陈重军[1] 

机构地区：[1]苏州科技大学环境科学与工程学院,江苏苏州215009 [2]吴中区环境保护局,江苏苏州215104

出　　处：《苏州科技大学学报（自然科学版）》2018年第3期64-69,84,共7页Journal of Suzhou University of Science and Technology（Natural Science Edition）

基　　金：江苏省环境科学与工程重点专业(类)建设项目(201223276)

摘　　要：采用污染损害指数法研究了苏州市空气质量变化特征,分析了苏州市2014年的环境空气质量。结果表明:苏州市综合污染损害指数值为11.725,达到环境空气质量二级标准范围,属于轻污染。在四种评价因子中,PM10的污染损害指数最大,达到7.969,其次是NO_2为6.135,CO和SO_2的污染损害指数相对较小,分别为4.124和3.385。相关性研究显示PM2.5和PM10与AQI相关性显著,相关性达到0.98和0.80,其次是CO,相关性为0.54,因此,PM10和PM2.5是苏州市环境空气的首要污染物。We investigated the annual variation law of air quality in Suzhou with the pollution damage index method and analyzed the relevance between PM10,PM2.5,SO2,NO2,CO and air quality in 2014. The results showed that the pollution damage index was 11.725,which means the air quality was within the second class and lightly-polluted. The pollution damage index of PM10,the first pollutant was 7.969;that of Nitrogen dioxide,the second, was 6.135. Those of CO and SO2 were relatively low,4.124 and 3.385 respectively. PM2.5 and PM10 were significantly correlated with AQI;the correlation reached 0.98 and 0.80;the next was CO,with the correlation 0.54. Thus,PM10 and PM2.5 were the first air pollutants in Suzhou.

关 键 词：空气质量 污染损害指数 影响因素 

分 类 号：X823[环境科学与工程—环境工程]